7. Neck Angiology and Neurology (Olinger) Flashcards
What innervates the skin near the ears?
The great auricular nerve from the cervical plexus. (C2 and C3)
Why might it be difficult to see the anterior ramus of C1 in lab?
Because it’s attached to the hypoglossal nerve. :(
What are all of the branches from the subclavian, and their sub-branches?
- Vertebral A.
- Internal Thoracic A
- Thyrocervical Trunk
- Inferior Thyroid A
- Suprascapular A
- Transverse Cervical A
- Costocervical A
- Supreme intercostal A
- Deep cervical A
- Dorsal Scapular A
(Very Indignant Tired Individuals Sip Tasty Coffee Served Double Daily)
What does the superior laryngeal artery branch off of?
Superior thyroid artery.
What innervates the skin over the clavicle?
The supraclavicular nerves (medial, intermediate, and lateral supraclavicular nerves)
(C3 and C4)
What nerve innervates most of the pharyngeal muscles?
The pharyngeal branch of the vagus nerve.
What nerve innervates most of the laryngeal muscles?
The recurrent laryngeal nerve.
What forms the superior root of the ansa cervicalis?
What forms the inferior root of the ansa cervicalis?
Superior root: Anterior ramus of C1, just after it no longer runs with the hypoglossal nerve.
Inferior root: C2 and C3 merge to form the inferior root.
What is the carotid body sensitive to?
What is the carotid sinus sensitive to?
Carotid body = chemoreceptors to detect blood composition and oxygen content.
Carotid sinus = baroreceptors to detect blood pressure.
The thyroid gland is supplied by what two major vessels?
The external carotid (superior thyroid)
The subclavian (inferior thyroid)
Where is Erb’s point located?
What nerves exit there?
Tucked in behind the SCM.
The transverse cervical, the great auricular, the lesser occipital, and the supraclavicular.
